Driving-cylinder for spinning-machines.



PATENTED AUG. 15, 1905.

J. W. ANDERSON, DRIVING CYLINDER FOR SPINNING MACHINES APPLIUA'I'IONFILED MAR. 13, 1905.

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Specification of Letters Patent.

Patented Aug. 15, 1905.

Application filed March 13, 1905. Serial No. 249,778.

To all mil/0711, 73/; ntrty concern:

Be it known that 1, JOHN W. Ammason', a citizen of the United States ofAmerica, and a resident of Pawtucket, in the county of Providence andState of Rhodelsland, have invented certain new and useful Improvementsin Driving-Cylinders for Spinning-Frames and Kindred Machines, of whichthe following is a specification.

My invention relates to sheet-metal driving-cylinders adapted in use tocarry the cords or bands which transmit motion to the spindles ofspi1mingframes and kindred machines.

:ln cylinders or drums of the class above referred to it is usual toconstruct them of a plurality of comparatively short sections, an end ofeach section being adapted to receive and be soldered. to the adjacentend of the fellow section and forming a flush or smooth joint andprovided interiorly with a series of sheetmetal disks or partitionslocated contiguous to and soldered to the said joint portion. A journalor shaft is secured to and extends from the center of the outer ends ofthe cylinder, thereby adapting it to be revolubly mounted in suitablebearings. There are objections to such former sheet-metaldriving-cylinders in that the percentage of labor and weight of stockentering into their construction materially increases the cost withoutcorresponding advantages.

The object of my invention is to produce a driving cylinder or drum fors1')inniiiigmachines, &c., in which the weight of material, the amountof solder used, and also the cost of labor are considerably less than isrequired in the production of cylinders heretofore employed. My improvedcylinder also possesses the added advantage of greater strength orstiffness and efficiency.

lln carrying out my invention each of the several cylindrical sections,or at least those comprising the main body portion of the cylinder, hasone end thereof true and plain, the other end being inturned to form anintegral interior peripheral flange, the adjacent outer portion of thisend of the section being re duced in diameter a short distancelongitudinally to receive thereon the plain or unswaged end of thefellow section. The adjacent or contacting surfaces of the thus-reducedand inserted end portions of the adjoining sections are then solderedtogether to form a practically air-tight or solid joint, the severalsections when thus joined together form ing a cylinder having a smoothand straight exterior surface.

lln the accompanying sheet of drawings, Figure 1 is a side elevation, inreduced scale, of a driving-cylinder embodying my improvement. Fig. 2 isan enlarged longitudinal sectional view taken through the body portionof the cylinder. Fig. 3 is a partial cross-section taken on line 0 0 ofFig. 2. Fig. alis a cross-sectional view, enlarged, taken on line 1/; wof Fig. 1; and Fig. 5 is a longitudinal sectional view showing a slightmodification.

A, referring to the drawings, indicates my improved driving-cylindercomposed of a plurality of cylindrical sheet-metal sections a, solderedtogether and provided with end journals 7). The sections a are usuallymade of sheet metal, as tin, one end a of the section (see Fig. 2) beinga continuation of the normal diameter of the cylinder. The other oropposite end portion of the section is swaged or reduced in diameter ata to a cylindrical form to receive thereon the adjacent end a" of theadjoining or fellow section. The stock or material of the front or outerend part of said reduced portion is turned inwardly and at right anglesto the longitudinal axis to form the integral annularstlengthening-iiangef1 The operation just referred to may beaccomplished by what is termed a metal-spinning process, wherein thesaid end portion is grad ually transformed by suitable tools from thecylindrical shape to form the inturned integral flange f. I would statethat the thickness of stock used in making driving-cylinders A isconsiderably less than as represented in Figs. 2 and 3, wherein thethickness is exaggerated. The adjacent surfaces of the parts a a of thesections are united by solder in a well-known manner.

While I: prefer to make up the cylindrical units or sections asubstantially alike-that is, each having one end reduced in diameter andinturned to form the stitl'ening member f, the other end being of normaldia1neter-I may provide one section with members a and f at each endadapted to receive thereon and be soldered thereto plain or unswagedsections 0, substantially as represented, section ally, in Fig. 5.

1 claim as my invention and desire to secure by United States LettersPatent In a sheet-metal driving-cylinder of the class described, thecombination with a section or unit having a portion at one end thereofreduced in diameter and having the free end of said reduced portion bentinwardly at l gaging section a considerable distance from substantiallyright angles the longitudinal the end of said section, substantially asdeaXis of the cylinder to form an integral an- 1 scribed.

nular flange f, of a fellow section having an Signed at Providence,Rhode Island, this encll thelreof arranged to receive 1therein said 11thday of March, 1905.

rec uce portion of the first-namec section and T be soldered thereto,the reduced portion of JOHN ANDERSON each section being of considerablelength whereby the flange on the end of the reduced Witnesses:

Gno. H. REMINGTON,

portion of one section will lie Within the en- I CALVIN H. BROWN.

